Stopping mechanism for looms



(No Model.)

T. W. SHARKEY.

STOPPING MECHANISM FOR LOOMS,

Patented Aug. 14, 1883.

To all whom it may concern:

Be it known that I, THOMAS WV. SHARKEY, a citizen of the United States,residing at Philadelphia, in the county of Philadelphia and State ofPennsylvania, have invented oer-- tain newand useful Improvements inStopping Mechanism for Looms;- and I do hereby declare the following tobea full, clear, and exact description of the invention, reference beinghad to the accompanying drawings,whichformpartofthisspecification,inwhich as n l Figurelis a sideelevation of a loom. Fig. 2 is a detail plan of a portion thereof. Fig.3 is a front view of aportion thereof; and Figs. 1514:, 5, 6, and7 aredetail views of certain parts.

My invention has for its object the prevention of smashes and breakingof shuttles in weaving, owing to the lathe striking against a shuttleremaining in the shed when it should be in the box. I

My'mprovements consist in the peculiar construction and combination ofparts, hereinafter fully set forth, whereby if a shuttle remain in theshed at the mouth of one of the shuttle-boxes when it should be in oneof the shuttle-boxes it will be pushed by the lathe against one of thetemples, forcing the latter forwardly, so as to release certainmechanism connected with the knockoff lever, thus causing the latter tobe moved and the loom instantly stopped before any damage can-be done. i7

Referring to the accompanying drawings, A designates the frame of aloom, and B the breast-beam. O is the lathe; D, a temple, and E theknockbff lever whereby the loom is started and stopped, the lever Ebeingconnected to the belt-shifter E by means of the lever E androck-shaft These parts are of the ordinary construction, and inthemselves are not claimed as my invention.

Frepresents as'haft or rod sustained in bearings ff, made fast to theinner or back side of the breast-beam, so that said shaft or rod will becapable of being rocked on its longitudinal axis therein. This shaft hastwo arms or projections, f f, one at each end, which are in line,respectively, with the slide-rods d of the temples D. Said slide-rodshave-each a downwardly projecting stud, (1, against which the lathestrikes, or which it meets in SPECIFICATION forming part of LettersPatent No. 283,289, dated 7 Application filed February 5, 1883.

PATENT OFFICE.

THOMAS WV. SHARKEY, OF PHILADELPHIA, PENNSYLVANIA.

STOPPING MECHANISM FOR LOOMS.

August 14, 1883,

(No model) beating up the woof, thus imparting longitudinal movement tothe slide-rods, which ordinarily is very slight. Should, however, ashuttle fail to fully enter thebox (either from being thrown withinsufficient force, or because of another shuttlebeing in the box at thewrong time) and come to' a state of rest between the temple and thelathe, the latterin beating up will'force the shuttle against the end ofthe temple, pressing the latter forwardly until its projection d meetsone of the arms f and causes the shaft F to rock in its bearings.

Fixed on the said shaft is a depending arm, G, having a latch-head orshoulder, g, which engages with another head or shoulder, h, on a latch,H, connected at its opposite end with a spring, H, which spring tendsconstantly to draw said latch H downwardly, or exerts draft thereon.

Attached to the latch H is a strap, I, which passes over a roller, t,and has its opposite end connected with a hook, K, sustained on thelathe and in engagement with the head 1 of a bar, L. The latter isjointed at Z to a bar, M, which is pivotedto one arm, n, of abellcranklever, N, whose other arm, n, passes in front of the knock-off lever E.When, therefore, a shuttle remains in the shed, as already suggested,and is forced by the lathe against the temple end, causing the shaft Fto be rocked, the latch or arm G is thrown out of engagement with thelatch H. The spring H now draws the latter down, causing a pull on thestrap I, which draws the hook K away from the head of the bar L. Thelatter now falls, moving the bar M and bell-crank N, the latterunshipping the knock-offlever E and causing the loom to stop, therebyavoiding a smash or breakage of a shuttle. The rod or shaft F extendsacross the loom, and has, as already stated, an arm, f, at each end, onefor each temple. Hence, no matter on which side of the loom the dwell ofa shuttle in the shed (when it should be in the box) occurs, said rod orshaft is rocked and the loom instantly stopped before any damage can bedone.

WVhat I claim as my invention is- 1. The combination, with the lathe Gand temples D, of a rod or rock-shaft, F, having arms f in line with thetemples, the knockoff lever, and intermediate mechanism, sub- IOOstantially as described, between the shaft F and knock-off lever,whereby when a shuttle remains in the shed the loom is stopped,substantially as shown and set forth.

5 2. The combination, with the lathe, the

temples D, having projections d, and the rockshaft F, having arms f f,and latch G, of the latch H, spring H, strap I, the knock-off lever E,and means, substantially as described,

IO operated by said strap for effecting the release of said lever,whereby, when one of said temples is moved by pressure of a shuttleagainst it, said latches are disengaged and the spring caused to exertdraft on the strap to 15 stop the loom, substantially as set forth.

3. The combination, with the lathe C, temples D, and knock-off lever E,of rock-shaft F, having arms f f, latches G H, spring H, strap I, hookK, bar L, lever N, andbar M, said parts being constructed and arrangedsubstan- 2o tially as described, whereby the loom will be stopped when ashuttle remains in the shed between the lathe and a temple, as setforth.

In testimony that I claim the foregoing I have hereunto set my hand this29th day of 25 January, 1883.

THOMAS W. SHARKEY,

Witnesses:

WILL H. POWELL, FRANK B. BIRCH.

